Just commenting to say I have the same problem with Dell XPS 15 2-in-1 9575, BIOS version 1.12.1. The problem was indeed fixed with blacklisting intel_vbtn. Using Fedora 32.
Just commenting to say I have the same problem with Dell XPS 15 2-in-1 9575, BIOS version 1.12.1. The problem was indeed fixed with blacklisting intel_vbtn. Using Fedora 32.